Very very nice! My complements to the chefs

The bootstrap performance is amazing - this dispells my belief that WPF is just slow starting up; I literally blinked and the MefLook screen was there. I like not having to look at an empty window while the "container" processes; perceived
performance takes a big hit.

Is the performance boost from the design of the composition container? With CAB, SCSF and Unity I did most of my learning from the Unit Test; I'm particularly interested in the composition container - are there test available; didn't
see them in the download.

Nice to see you from the other side of the house :) Thanks for the comments. The team will be very happy to hear this.

We will be shipping unit tests in the next drop which will be in about 6 weeks. On the perf, we've been focusing heavy on improving our startup times. It will get even better as in the next drop there should be a cached catalog. This allows the container to
access all the metadata without any reflection what-so-ever. The cache will be lightning fast!

[gblock] "Nice to see you from the other side of the house"; ditto, I enjoyed your comprehensive article on the
CompositeWPF.

Lightning fast is a good thing - looking forward to the next drop! By then I should be in a happy place (with the CompositeWPF and hopefully SharePoint) so that I can dig in and learn MEF. Exciting times!